Engine attachment.



T. L. KIRBY.

ENGINE ATTACHMENT.

APPLICATION FILED AUG. 17, 1915.

L21%,3%% Patented Jan. 30, 1917.

FTEJ- Q WlT/VESSES: lIVVE/VTOH ZZIOMHS 4.1%2521 By W A TTOR/VEYS rnoiaas Lents inner, or HARTSVILLE, 'rnnnnssni Enema ATTACHMENT.

Specification of Letters Patent.

Patented Jan. 3 0), f t ilt.

Application filed August 17, 1915. Serial NQJESBSS.

,To all whom it may concern:

of Hartsville, the county of Trousdale .and State of Tennessee, have invented a new and useful Improvement in Engine Attachments, of which the following is a. specification.

My invention is an improvement in engine attachments, and theinvention has for its object to provide an attachment for use with internal combustion engines, adapted to be arranged between the carbureter and iihe or breaking up the particles of unvaporized fuel to form a more volatile gas, more explosive in its nature, and to provide a more thorough and intimate mixture.

A further object of the invention is to provide. mechanism for decreasing the fuel consumption without-decrease of speed or power, and to provide an attachment which may be applied to stationary as well as to movable engines and motors.

A further object is to provide mechanism for admitting at will pure air into the cylinders to be used in cleaning or cooling the cylinders, and in case of motors to act as a brake.

A further object is to provide a new and improved form of operating mechanism for the above attachment, for permitting the operator with one foot to adjust the attachment to the required conditions, and to provide a new compact releasable attachment which will be durable because simple in construction and operation.

In the drawings :-Figure side view of an automobile provided with the attachment and with parts in section, Fig. 2 is an enlarged section on the line 2-2 of Fig. 1, and Fig. 3 is an enlarged sectional view of the attachment and its operating mechanism.

The present embodiment of the invention is shown in connection with an engine, not shown, of an automobile 1, the device or attaehment being arranged between the carbar-eter 9 and the intake manifold, not shown, and interposed in the pipe 3, which connects the arbureter with the manifold.

The attachment comprises a casing consisting of a body 4 of tapering form, having a central bore 5, and the small end of the body is externally threaded, and is threaded into a lateral opening 6, in the pipe 3, and

l is a partial a lock nut 7 is threaded on to the, smail'end to make a fluid tight joint with the pipe.

The upper end of the body is chambered or recessed as indicated at 8, and a cap 9 is threaded on to the said end, the said end being externally threaded for engagement by the cap. The capliasa central opening 10, and a screen llis arranged transversely of the opening. A'slide valve 12 is mounted. to move transversely of the body of the casing in oppositely arranged slots in the side wall and in the chamber or recess S, the valve moving at the opening of the bore 5 into the chamber.

A coil spring 13 is arranged in the chamber between the cap 9 and the valve. and this spring normally acts to hold the valve on its seat. The body is provided with an angular arm lat, extending radially from the body, and the valve has a stem 15, which is mounted to slide between the arms lt of a fork on the arm.

A pin 17 is passed transversely of the arm above the stem to limit the upward movement of the stem, and a coil spring 18 encircles the stem between the arms and the valve, the spring acting normally to hold the valve closed. The valve has an opening 19, which when the valve is in the position shown in Figs. 2 and 3, that is, in normal position, will register with the bore 5 of the ody of the casing.

A shoulder 20 is formed between the valve and the stem, and this shoulder is adapted to engage the periphery of the body when the valve is closed, that is. when the opening 19 is in register with the bore of the body of the casing.

In operation, when the engine is running with the valve in normal position, that is, in the position of Fig. 2, air will enter by way of the screen 11, and the opening 19, and the bore 5 to the pipe 3, and will pasato the cylinders. This position admits theanaximum amount of air. if the operator desired to decrease the amount of the air entering he will make traction on the stem 15,

against the resistance of the spring is in a direction to bring the opening 19 of thevalve out of register or partially out of register with the bore S'and he may control this opening to admit any amount of air between none at all and the full capacity. In de scending steep inclines when the engine coasting with the valve open, air will be drawn into the cylinders to clean and cool.

I is also p vided with a foot plate 'trol the extent of opening.

.end, and one end of the cross head in the present foot board and the Mechanism rovided for operatin'g'the valve and for permitting the operator or driver to con- This mechanism the same, and to act as a brake.

comprises a treadle lever, tions 21 and 22, extending at approximately a right angle with respect to. each other. The portion 21 is curved slightly and is pro 23 at its free end. The portion 22 has a cross head 24 at its free is pivoted to a bracket 25, which is secured to the under face of the foot board 26 of the automobile instance. The other end. of the cross head 24 is connected to the stem 15 of the valve by a flexible member 27, as for instance, a cord or wire.

A coil spring 28 isarranged between the portion 22 of the treadle lever, and this spring acts normally to move the treadle lever upward, and the portion 21 tion to be engaged by of the'opening29, and

of the lever passes through a slot 29, in the foot board to bring the foot plate 23 in posithe foot of the operator. The portion 21 ,of the treadle lever is provided with a laterally extending lug 30, for limiting the upward movement of the lever, and when this" lug is in en agement with theundersurfaoe oi the. foot card the valve 12 is in norm 1 position.

Latch mechanism is provided for holding the treadle 'levpr in adjusted position, and for'liolding the valve in adjusted position. This-mechanism comprises a latch lever 31, which is pivoted to the portion 21 of the treadhe lever, as indicated at 32, and the lever 31 has a foot plate 33, plane with the foot-plate 23 and in position to be operated bythe same foot that operates the treadle lever.

The latch lever has a series of teeth 34, four'teeth being provided in the present instance; and 'these teeth are on thatedge of teet are adapted to engage a plate 35, which is secur 'd to the foot plate at the upper end a coil spring 36 is arranged between the treadle lever and the inner end of the latch lever, the spring acting normally to hold the teeth 34 in engagement with. the plate 35.

consisting of pornormally in the same the IlFver remote from the treadle lever. The

operate the treadlelever in a direction tov open the valve 12. The four teeth give four positions of adjustment and this has been found sufficient in practice.

The improved treadle permits the valve to be opened entirely or partially opened or close and by means of the treadle the operator may vary the amountof air passing in in accordance with conditions.

The spring 13 arranged between the cover and the valve, that when the valve is closed the air cannot pass through the casing 4. There must be some clearance between the slide valve and the passage in which it not for the spring 13 theremiglit be some leakage at this point. p

I claim j A valve of the character specified, adapted to be arranged between the carbureter,

holds the valve'to its seat so it moves, so that were and the engine to which the carbureter is end of the casing and having an opening providedwith a covering of perforate material,

said casing being internally enlarged'beyondthe slide valve, valve and the capfor holding the valve to its seat, said casing havi a ateral arm provided with an opening or-guiding thevalve.

THOMAS LOUIS Inner.

Witnesses BANKS ROBERTSON, D. S. REID.

and a coil spring between the 

